OCR Text |
Show 494 INDEX. DUCKWEED. Duckweed, 385. Dugong, affinities of, 414. Dung-beetles with deficient tarsi, 135. Dyticus, 386. E. Earl, Mr. W., on the Malay Archipelago, 395. Ears, drooping, in domestic animals, 11. --, rudimentary, 454. Earth, seeds in roots of trees, 361. Eciton, 238. Economy of organisation, 147. Edentata, teeth and hair, 144. --, fossil species of, 339. Edwards, Milne, on physiological divisions of labour, 115. --, on gradations of structure, 194. --, on embryological characters, 418. Eggs, young birds escaping from, 87. Electric organs, 192. Elephant, rate of increase, 64. -- of glacial period, 141. Embryology, 439. Existence, struggle for, 60. --, conditions of, 206. Extinction, as bearing on natural selec-tion, 109. -- of domestic varieties, 111. --, 317. Eye, structure of, 187. --, correction for aben·ation, 202. Eyes reduced in moles, 137. F. Fabre, M., on parasitic sphex, 218. Falconer, Dr., on naturalisation of plants in India, 65. -- on fossil crocodile, 313. -- on elephants and mastodons, 334. --and Cantley on mammals of sub- Himalayan beds, 340. Falkland Island, wolf of, 393. Faults, 285. Faunas, marine, 348. Fear, instinctive, in birds, 212. Feet ofbirds, young molluscs adhering to, 385. FRUIT-TREES. Fertility of hybrids, 249. -- from slight changes in conditions 267. ' --of crossed varieties, 267. Fir-trees destroyed by cattle, 71. ----, pollen of, 203. ·Fish, flying, 182. --, teleostean, sudden appearance of, 305. --eating seeds, 362, 387. --,fresh-water, distribution of 384. Fishes, ganoid, now confined to' fresh water, 107. --, electric organs of, 192. --, ganoid, living in fresh water, 321. --of southern hemisphere, 376. Flight, powers of, how acquired, 182. Flowers, structure of, in relation to crossing, 97. --of compositre and umbelliferre, 144. Forbes, E., on colours of shells, 132. -- on abrupt range of shells in depth, 175. -- on poorness of palreontological collections, 287. -- on continuous succession of genera, 316. -- on continental extensions, 357. -- on distribution during glacial period, ::366. -- on parallelism in time and space, 409. Forests, changes in, in America, 74. Formation, Devonian, 334. Formations, thickness of, in Britain, 284. --,intermittent, 290. Formica rufescens, 219. -- sanguinea, 219. -- flava, neuter of, 239. Frena, ovigerous, of cirripedes, 192. Fresh-water productions, dispersal of, 383. Fries on species in large genera being closely allied to other species, 57. Frigate-bird, 185. Frogs on islands, 393. Fruit-trees, gradual improvement of, 37. ---- in United States, 85. -----, varieties of, acclimatised· in United States, 142. INDEX. 495 FUCI. Fuci, crossed, 258. Fur, thicker in cold climates, 133. Furze, 439. G. Galapagos Archipelago, birds of, 390. -, productions of, 398, 400. Galeopithecus, 181. Game, increase of, checked by vermin, 68. Gartner on sterility of hybrids, 247, 255. -- on reciprocal crosses, 258. -- on crossed maize and verbascum, 270. -- on comparison of hybrids and mongrels, 272. Geese, fertility when crossed, 253. --,upland, 185. Genealogy important in classification, 425. Geoffroy St. Hilaire on balancement, 147 . . ---- on homologous organs, 434. ----, Isidore, on variability of re-peated parts, 149. ----, on correlation in monstrosities, 11. ----, on correlation, 144. ----, on variable parts being often monstrous, 155. Geographical distribution, 346. Geography, ancient, 487. Geology, future progress of, 487. --, imperfection of the record, 279. Giraffe, tail of, 195. Glacial period, 365. Gmelin on distribution, 365. Gnathodon, fossil, 368. Godwin-Austen, Mr., on the Malay Archipelago, 299. Goethe on compensation of growth, 147. GoosebeiTy, grafts of, 262. Gould, Dr. A., on land-shells, 397. --,Mr., on colours of birds, 132. --, on birds of the Galapagos, 398. --,on distribution of genera ofbirds, 404. Gourds, crossed, 270. Grafts, capacity of, 261. Grasses, varieties of, 113. HOOKER. Gray, Dr. Asa, on trees of United States, 100. --, on naturalised plants in the United States, 115. --, on rarity of intermediate varie~ ties, 176. --, on Alpine plants, 365. --,Dr. J. E., on striped mule, 165. Grebe, 185. Groups, aberrant, 429. Grouse, colours of, 84. --, red, a doubtful species, 49. Growth, compensation of, 147. --, correlation of, in domestic products, 11. --, correlation of, 143. H. Habit, effect of, under domestication, 11. ·--,effect of, under nature, 134. --, diversified, of same species, 183. Hair and teeth, correlated, 144. Harcourt, Mr. E. V., on the birds of Madeira, 391. Hartung, M., on boulders in the Azores, 363. Hazel-nuts, 359. Hearne on habits of bears, 184. Heath, changes in vegetation, 72. Heer, 0., on plants of Madeira, 107. Helix pomatia, 397. Helosciadium, 359. Hemionus, striped, 163. Herbert, W., on struggle for exist-ence, 62. --, on sterility of hybrids, 249. Hermaphrodites crossing, 96. Heron eating seed, 387. Heron, Sir R., on peacocks, 89. Bensinger on white animals not poisoned by certain plants, 12. Hewitt, Mr., on sterility of first crosses, 264. Himalaya, glaciers of, 373. --, plants of, 37 5. Hippeastrum, 250. Holly-trees, sexes of, 93. Hollyhock, varieties of, crossed, 271. Hooker, Dr., on trees of New Zealand, 100. |